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ilmrnn %TATES PATENT Orrrcn GEORGE B. \VEBB, OF NEVVARK, NE\/V JERSEY, ASSIGNOR OF ONE-HALF TO PLUMB & MAROUS, OF SAME PLAGE.

ELECTRIC GLCK,

SPECIFIC'ATION forming paart of Letters Patent N0. 294,552, dateoi March 4, 1884:

' Application filsd September 7,1883. (N modei.)

.T0 all w7wm z't may concern:

Be it known that I, GEORGE B, WEBB, a citizen of the United Stabes, residing at Newark, in the county of Essex and State 0f New Jersey, have invented certain new and usefu1 Improvements in Electrical Clocks; and I d0 hereby deeiare the following t0 be a fn11, c1ear, und exact description of the invention, such as Will enab1e 0thers skilled in ehe art 1:0 whieh it appertains to make and use the same, referencebeing had t0 the accompanying drawings, and to ietters 0f reference marked thereon, which form a part 0f this specification.

This invention reiates t0 improvements in ecks, and more especially to those in which the motive po'wer is supplied by electricity, eommonly known as eleetrical clocks, and

- is intended to increase the effic iency and regu- 1arity thereof by means 0f such applianeesas Will be hereinafter deseribed and elaimedQ Referring t0 the accompanying drawings, in which similar 1etters cf referenee indicate 001- responding parts in each 0f thefigures, Figure 1 is a front eievation 0f a c10ek With the dia1 0r face removed, showing the relative position 0f parts 0f my invention. Fig. 2 is also a front elevation 0f the same, the upper half 0f the front plate being rernoved, showing the arrangement 0f the interior works. Fig. 3is a top view, the escapement -rod and wheel being removed 110 show the parts below. Fig. 4 is a side elevation 0f the modified form 0f the upper contact-point. Fig. 5 is a section taken through 1ins 00 0f Fig. 1, showingsome 0f the parts; and Fig. 6 is a detailed view 0f the spring-pawl and a-uxiliary spring.

In ti1e drawings, A is the front platze of fixe 01001; Bis a 1ever pivoted thereto ab b.

b is the long arm 0f the iever, provided with y an e1astic strip, Z) which extends un'der the armatnre c.

b is the short arm 0f the lever, having pivoted thereto the second whee1 arbor b, Figs. 3 and 5, to which is a-ttached the ]ower 0011- tact-whee], b, which moves automatically therewith.

O are the magnets, preferably a pair, seeured within a suitable frame attached to the frame-work 0f the ciock.

- 0 is an armature pivoted at c t0 the frame 0i' the magnets, and rests npon the magnets,

as shown in Figs l, 2, a11(1 3. The actuatingarm D is serewed 0r fastened t0 the armatnre at 0ne end, the other end carrying the springpaw]. d, whieh iangages with the teeth 0f the 5 5 actuating-wheel E, Fig. 2, said spring-pawl being made 0f an e1astic strip 01' piece 0f stee1 and secured t0 the actuating-arm D by a coilar,

as shown, 01 by any snitabie device.

d is -a stop 011 the arm D, which Imoves therewith and with the spring-pawl (Z, and serves t0 preventthe said spring-pawl from turning the aetuating-wheel fa-rther than isrequired by dropping between the teeth 0f said wheei. 6

e1s a eurved arm ti1at extends under the actuating-wheei and carries the safety-stop e, which, when the aotion ofthe spring 0 upon th e arm D 1ifts the spring (Z and stop d from their engagement with the actuating-whee], rises between the teeth 0f the san1e and acts as a supplementary stop or cateh, preventing any motion 0f the wheei E.

F is the impulse-arm, ab 0ne end 0f whieh is the e1astic strip f, by which it is secured to the bloekf, the oth'er end being threaded t0 receive a nnt, j, t0 which isattached the acoommodating-spring f, as sh0wn in Fig. 1. A 0011211, G, carrying the iridium contactp0int g, is secured upon the impuise-arm, as shown in same figure. Auxiiiary springs H and H are employed t0 stop the vibration 0f the spring-pawl d and aecommodating-spring f" as they are 1ifted from their points 0f engagement with. the actuating-wheel and the 8 5 platej. The spring H is secured to the arm D by the same coliar that earries the springpawl, as shown in Figs. l and 2, or in any suitab1e manner, the other end 0f said spring bearing against ehe springpawi d. The spring H is attaohed at 0ne end t0 the nut f up0n the impulse-arm, by which the spring f is counected with said arm, and the other end bearing against 0r just touching said spring f in its normal state 0f rest, similar t0 the spring 5 H. By using springs d and f t0 impinge upon the aetnating-wheel and plate j", the iiexibility 0f said springs prevents their battering o r jarring the parts as they engage therewith;

and in order t0 avoid the vibration of sai l dueing a compensating pendulum that is safficient and economical, -The pressure- 01" the spring K npon the arbor b shonld be just enough so depress the contact-wheel b and the short arm b" 0f the 1ever when reqnired, and yet permit said arbor t0 revolve, the arbor and whee1 bhus having ab alle Same time ab interva1s a doubie motionone a r0bary mooion, and the other dependenb npon the action 0f the 1ever B upward and downwardas will be readily understood.

The momen1; t-he cn rrent is re-established by the contact 0f ohe points the whee]s 0f the 0100k begin t0 move, as herein deseribed. 'lhis motion is communicated to the contacb-wheel b, the surface 0f which in tnrning scrapes agai1ist ehe point g, thus removing the depositsresnlting from eombnstion and oxidation, which wou1d accnmnla-te upon the wheel l. In an electric clock, the combination,

with an escape-wheei and an actnabing-arm 0f a c10ck, of a spring c1ick 0r paw1 secured np0i1 said arm, adapted to engage with said wheel, and an auxiliary spring also secured t0 said arm and bearing agains said spring-dick t0 prevent the vibration thereof, substantially as seo forth.

2. In eombination, a springpawl, d, an anxiliary spring, II, a clock-wheel, and astop, d, all as set f0rth.

3. Ina 0100k, the combination 0f a springpaw], (Z, a toothed whee], E, a stop, d, and a safety-stop (as e) adapted t0 engage with the teeth 0f the Wheel when the spring-pawl is disengaged from said whee1, all snbstantiaiiy as set forth.

4. In combination,aspringpawl,d,atoothed wheel, E, a stop, d, a safety-stop, c, andmeans whereby saidstop e and spring-pawl d may be operated simnl'taneously, all substantially as set forth.

5. A clock-arbor (as b) having attached thereto a contactwheel, (as b,) b0th 0f which have a rotary motion, and ab the same time ab intervais an npward and downward motion, all snbstantially as and f0r the purposes Set forth.

G. In an electrical 01001;, the comnination 0f a 1ever, (as B,) contact-wheel, (as ZP,) springpiece b", and means f0r regniating the extenb of vibration 0f said lever, all as set forth.

7. In combination, an impulse arm, F, adapted to carry a con tact-point, a spring, f

August, 1883.

auxiliary spring H, a pendnlnm, J, provided with an arm, j, and means for depressing said impulse-arm, all substantiaily as and f0r the purposes sei: forth.

8. Tl1e eombination, with the pendnlum 0f a 0100k, 0f a spring, z", impnlse-arm F, accommodzxting-spring f, and means f0r regulating the tension of the spring i, (as I,) all as Set forth.

9. In eombination, the magnets O, armature, c, actuatingarm D, means for raising said arm, (as the spring 0,) a spri1Jg-paw1,d,

secnred t0 said actnating-arm, and adapted 110 engage with a toothed whee1, an auxiliary spring, H, and a st-0p, d, both of whieh are also secnred to said actuating-arm, all .as set forth.

10. A elock-arbor having attached thereto a contactwheel provided with a eontinuous peripherai surface 0f conducting material.

11.The combination, with a ciock-arbor, b, having secnred thereto a eontact-poinb, 0f mechanism whereby saicl arbor and contactpoint may be raised and lowered,ail as sei; forth.

12. In an electrical ciock, the combination 0f co-operating eontacb-wheels, and mechanism whereby both of said wheels may be rotated automatically and independently, all 5 snbstantially as and f0r the pnrposes set forth.

13. In combination, a clock-arbor, a 0011- tacbpoinb, a spring, K, and means Tor raising said contacb-point and arbor, all snbstantially as and f0r the purposss set forth.

14. In combination, a clock-arbor, a con taet-point, a spring, (as K,) and a lever, (as B,) a magnet, O, armature c, an d means for regnlating the extent 0f the movement of said lever, all snbstantiaily 'as and for the purposes 10 5 set forth.

15. In combination, a lever, B, eontactwheel Z), arbor b, spring K, impulse-arm F, contact-point g, and means forlowering said arm, all snbstantially as sei: fort1r.

16. In a clock,the combination 0f a pawl, a toothed wheel, E, a stop, d, and a safetystop ('as e) adapted t0 engage with the teeth 0f said wheel when the pawl and stop d are disengaged therefrom, substantially as set forth. 1 15 17. In combinatioi1, an impulse-a'rm, automatically-rotating cont-act-wheels, -one 0f said wheels being attache& t0 a ciock-arbor, the other t0 said impulse-arm, and a pendninm, snbst'antially as set forth.

18. In combination, a penduium, an automaticallyrotating contact-wheel, an impulsearm, and a contact-point attached to said impuise-arm, substanbially as desci*ibed.

' In testimony that I claim the foregoing I 125 have hereunto set n1y hand this 31s13 day 0f IOO IIO

GEORGE B. \VEBB.

\Vitn esses:

F. F. CAMPBELL, O. DRAKE. 

